Prevent DoS on deadlocked established channel in golang.org/x/crypto/ssh
CVE-2026-56855 is fixed in 32 products on 1 platform, first by DEBIAN-CVE-2026-56855, released September 8, 2026. It is not reported as exploited. Patch Radar priority: High.
The buildah package provides a tool for facilitating building OCI container images. Among other things, buildah enables you to: Create a working container, either from scratch or using an image as a starting point; Create an image, either from a working container or using the instructions in a Dockerfile; Build both Docker and OCI images. Security Fix(es): * podman: Arbitrary file write when importing OCI archive (CVE-2025-11395) * golang.org/x/crypto/ssh: golang.org/x/crypto/ssh: Denial of Service via crafted messages (CVE-2026-56855) * net/[http:](http:) golang: golang: Denial of Service via crafted HTTP Range headers (CVE-2026-78667) * crypto/x509: golang: crypto/x509: Man-in-the-middle attacks via untrusted intermediate certificates (CVE-2026-111943) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| alloy · opensuse-leap 16.0 | 1.19.2-160000.1.1 | OPENSUSE-SU-2026:22032-1 | Oct 6, 2026 |
| alloy · sles 15.7 | 1.19.2-150700.15.29.1 | SUSE-SU-2026:4408-1 | Oct 1, 2026 |
| alloy · sles 16.0 | 1.19.2-160000.1.1 | SUSE-SU-2026:24148-1 | Oct 6, 2026 |
| amazon-ssm-agent · amzn 2023 | 3.3.5390.0-1.amzn2023 | ALAS2023-2026-3160 | Nov 7, 2026 |
| amazon-ssm-agent · opensuse-leap 16.0 | 3.3.5390.0-160000.1.1 | OPENSUSE-SU-2026:21884-1 | Sep 20, 2026 |
| amazon-ssm-agent · sles 15.6 | 3.3.5390.0-150000.5.43.1 | SUSE-SU-2026:4372-1 | Sep 28, 2026 |
| amazon-ssm-agent · sles 15.7 | 3.3.5390.0-150000.5.43.1 | SUSE-SU-2026:4372-1 | Sep 28, 2026 |
| apptainer · opensuse-leap 16.0 | 1.5.3-bp160.4.1 | OPENSUSE-SU-2026:21927-1 | Sep 21, 2026 |
| apptainer · sles 15.7 | 1.5.3-150600.4.43.1 | SUSE-SU-2026:4308-1 | Sep 23, 2026 |
| buildah · RHEL 9 | 2:1.43.4-2.el9_8 | RHSA-2026:90424 | Sep 24, 2026 |
| buildah · almalinux 9 | 2:1.43.4-2.el9_8 | ALSA-2026:90424 | Nov 7, 2026 |
| buildah · ol 9 | 2:1.43.3-2.0.1.el9_8 | ELSA-2026-70640 | Sep 24, 2026 |
| buildah · rocky 9 | 2:1.43.4-2.el9_8 | RLSA-2026:90424 | Nov 7, 2026 |
| buildah-tests · RHEL 9 | 2:1.43.4-2.el9_8 | RHSA-2026:90424 | Sep 24, 2026 |
| buildah-tests · almalinux 9 | 2:1.43.4-2.el9_8 | ALSA-2026:90424 | Nov 7, 2026 |
| buildah-tests · ol 9 | 2:1.43.3-2.0.1.el9_8 | ELSA-2026-70640 | Sep 24, 2026 |
| cloudflared · opensuse-leap 16.0 | 2026.9.1-bp160.1.1 | OPENSUSE-SU-2026:21924-1 | Sep 21, 2026 |
| containerd · amzn 2023 | 2.3.7-1.amzn2023.0.1 | ALAS2023-2026-3273 | Nov 7, 2026 |
| containerd-debuginfo · amzn 2023 | 2.3.7-1.amzn2023.0.1 | ALAS2023-2026-3273 | Nov 7, 2026 |
| containerd-debugsource · amzn 2023 | 2.3.7-1.amzn2023.0.1 | ALAS2023-2026-3273 | Nov 7, 2026 |
| containerd-stress · amzn 2023 | 2.3.7-1.amzn2023.0.1 | ALAS2023-2026-3273 | Nov 7, 2026 |
| containerd-stress-debuginfo · amzn 2023 | 2.3.7-1.amzn2023.0.1 | ALAS2023-2026-3273 | Nov 7, 2026 |
| containerized-data-importer · sles 15.7 | 1.64.0-150700.9.14.1 | SUSE-SU-2026:4209-1 | Sep 16, 2026 |
| containerized-data-importer1.65 · opensuse-leap 16.0 | 1.65.0-160000.3.1 | OPENSUSE-SU-2026:21824-1 | Sep 9, 2026 |
| cosign · opensuse-leap 16.0 | 3.1.3-160000.1.1 | OPENSUSE-SU-2026:22064-1 | Nov 7, 2026 |
| cosign · sles 15.6 | 3.1.3-150400.3.57.1 | SUSE-SU-2026:4392-1 | Sep 29, 2026 |
| cosign · sles 15.7 | 3.1.3-150400.3.57.1 | SUSE-SU-2026:4392-1 | Sep 29, 2026 |
| cosign · sles 16.0 | 3.1.3-160000.1.1 | SUSE-SU-2026:24213-1 | Nov 7, 2026 |
| gh · opensuse-leap 16.0 | 2.100.0-bp160.1.1 | OPENSUSE-SU-2026:21861-1 | Sep 15, 2026 |
| golang-go.crypto · Debian 14 | 1:0.56.0-1 | DEBIAN-CVE-2026-56855 | Sep 8, 2026 |
| google-guest-agent · opensuse-leap 16.0 | 20260903.01-160000.1.1 | OPENSUSE-SU-2026:21879-1 | Sep 18, 2026 |
| google-guest-agent · sles 15.6 | 20260903.01-150000.1.85.1 | SUSE-SU-2026:4270-1 | Sep 21, 2026 |
| google-guest-agent · sles 15.7 | 20260903.01-150000.1.85.1 | SUSE-SU-2026:4270-1 | Sep 21, 2026 |
| google-osconfig-agent · opensuse-leap 16.0 | 20260911.00-160000.1.1 | OPENSUSE-SU-2026:21882-1 | Sep 19, 2026 |
| google-osconfig-agent · sles 15.6 | 20260911.00-150000.1.67.1 | SUSE-SU-2026:4293-1 | Sep 23, 2026 |
| google-osconfig-agent · sles 15.7 | 20260911.00-150000.1.67.1 | SUSE-SU-2026:4293-1 | Sep 23, 2026 |
| govulncheck-vulndb · opensuse-leap 16.0 | 0.0.20260902T191204-160000.1.1 | OPENSUSE-SU-2026:21812-1 | Sep 8, 2026 |
| govulncheck-vulndb · sles 16.0 | 0.0.20260902T191204-160000.1.1 | SUSE-SU-2026:23712-1 | Sep 8, 2026 |
| hauler · opensuse-leap 16.0 | 2.1.0-bp160.3.1 | OPENSUSE-SU-2026:21841-1 | Sep 14, 2026 |
| hcloud · Fedora 43 | 1.69.0-1.fc43 | FEDORA-2026-6D4A64A6B0 | Sep 30, 2026 |
| hcloud-debuginfo · Fedora 43 | 1.69.0-1.fc43 | FEDORA-2026-6D4A64A6B0 | Sep 30, 2026 |
| hcloud-debugsource · Fedora 43 | 1.69.0-1.fc43 | FEDORA-2026-6D4A64A6B0 | Sep 30, 2026 |
| helm · opensuse-leap 16.0 | 4.3.0-160000.1.1 | OPENSUSE-SU-2026:21983-1 | Sep 30, 2026 |
| helm · sles 16.0 | 4.3.0-160000.1.1 | SUSE-SU-2026:23984-1 | Sep 30, 2026 |
| keybase-client · opensuse-leap 16.0 | 6.6.3-bp160.3.1 | OPENSUSE-SU-2026:21846-1 | Sep 14, 2026 |
| nerdctl · amzn 2023 | 2.3.5-1.amzn2023.0.2 | ALAS2023-2026-3274 | Nov 7, 2026 |
| rclone · amzn 2023 | 1.75.1-1.amzn2023 | ALAS2023-2026-3129 | Sep 28, 2026 |
| rclone · opensuse-leap 16.0 | 1.75.1-bp160.1.1 | OPENSUSE-SU-2026:21999-1 | Sep 28, 2026 |
| rclone-debuginfo · amzn 2023 | 1.75.1-1.amzn2023 | ALAS2023-2026-3129 | Sep 28, 2026 |
| rclone-debugsource · amzn 2023 | 1.75.1-1.amzn2023 | ALAS2023-2026-3129 | Sep 28, 2026 |
| runfinch-finch · amzn 2023 | 1.19.0-1.amzn2023.0.1 | ALAS2023-2026-3140 | Sep 28, 2026 |
| trivy · opensuse-leap 16.0 | 0.74.0-160000.3.1 | OPENSUSE-SU-2026:21835-1 | Sep 14, 2026 |
| zk · opensuse-leap 16.0 | 0.15.6-bp160.2.1 | OPENSUSE-SU-2026:21814-1 | Sep 8, 2026 |
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